Swansea Coroner's Office has told ITV News that further tests will now be carried out on Gareth Colfer-Williams, which are expected to take six to eight weeks.
His family have raised questions about the medical care he received in the days before his death.
More top news
Finance Secretary Mark Drakeford is to become the first Assembly Member to announce that he'll stand in the contest to replace Carwyn Jones
A wet and murky night to come, but at least it will remain mild!
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